From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Rapoport Subject: [PATCH v2 20/20] docs/vm: update memory-models documentation Date: Wed, 29 Apr 2020 15:11:26 +0300 Message-ID: <20200429121126.17989-21-rppt@kernel.org> References: <20200429121126.17989-1-rppt@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id:Date :Subject:To:From:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hbk7/hzpG5afATkzOcU5bw28WrDjBkFAS/aygYpRebs=; b=lUu3FbPqwbL1vU HaxoOKNHIN8G+0w3ASuXQFVjmUhZugnEvxz75+ynpJVzN/UluxFKbGAx6aWdNucaRKqeGSLKGFN+Z 5Lhy8m1IW75WevYnUSbQjK585ehE9weJlJZ+1XS8g/6VjoDkmwvDSlPs+O4D8uVRhTzBraCKjJJXl 1SGunCvD6r05XIr6Mpit1INMjMBw+Of/Ju5PsOu3yvXpIdzcWHGaJCLscVlNeWbQpJ9dy15K0J7ij e2XSQErfk99CKW095SoGcWyQgBJOj+WHTeJjQLUMZvB7lfT/YekqQ8CwcUsbjnskN/OCf8PAE/1y7 LJgpVUoxqDbUsftqwymQ==; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588162604; bh=vSBPyOKwrmQNqt7kyNkBHr9JqpNBLG1f44P+yYUwAD0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WoeR0IMjhESnMKZLgeFQpYaSM1Q0137VRdB9oM2DfU/SAAkdUyrTXqjy5uqkDMB4w A8OD0E3zWwQv5BZXvU0pC1x6W2MSkHROGVWsKhh68IOVd1n7tuhS5R+cHwtxzXCZoH XZaE67z9A52A2FknRpk/21Qqx9xMcUu4+BgH8q4Q= In-Reply-To: <20200429121126.17989-1-rppt@kernel.org> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+glpr-linux-riscv=m.gmane-mx.org@lists.infradead.org Content-Type: text/plain; charset="us-ascii" To: linux-kernel@vger.kernel.org Cc: Rich Felker , linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, Catalin Marinas , Heiko Carstens , Michal Hocko , "James E.J. Bottomley" , Max Filippov , Guo Ren , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, Mike Rapoport , Greg Ungerer , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Baoquan He , Jonathan Corbet , linux-sh@vger.kernel.org, Michael Ellerman , Helge Deller , x86@kernel.org, Russell King , Ley Foon Tan From: Mike Rapoport to reflect the updates to free_area_init() family of functions. Signed-off-by: Mike Rapoport --- Documentation/vm/memory-model.rst | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/Documentation/vm/memory-model.rst b/Documentation/vm/memory-model.rst index 58a12376b7df..91228044ed16 100644 --- a/Documentation/vm/memory-model.rst +++ b/Documentation/vm/memory-model.rst @@ -46,11 +46,10 @@ maps the entire physical memory. For most architectures, the holes have entries in the `mem_map` array. The `struct page` objects corresponding to the holes are never fully initialized. -To allocate the `mem_map` array, architecture specific setup code -should call :c:func:`free_area_init_node` function or its convenience -wrapper :c:func:`free_area_init`. Yet, the mappings array is not -usable until the call to :c:func:`memblock_free_all` that hands all -the memory to the page allocator. +To allocate the `mem_map` array, architecture specific setup code should +call :c:func:`free_area_init` function. Yet, the mappings array is not +usable until the call to :c:func:`memblock_free_all` that hands all the +memory to the page allocator. If an architecture enables `CONFIG_ARCH_HAS_HOLES_MEMORYMODEL` option, it may free parts of the `mem_map` array that do not cover the -- 2.26.1